1. You (go) with us to the Zoo tomorrow if you (be) a good boy.

2. They (intend) to go there next week, but now they (find) they (have not) enough money.

3. I (work) very hard lately.

4. What (you do) just now while I (wash) the dishes?

5. I (read) in yesterday's paper that a boy (steal) a watch and (sell) it, and that the police (look) for him everywhere but not (find) him.

6. When he grew old he often (think) of all the things he (do) when he (be) young.

7. When he grows old he (often think) of all the things he (do) when he (be) young.

8. I (never read) a story that (interest) me so much as the one I (read) last night.

9. When we (go) to see them last night, they (play) cards; they (say) they (play) since six o'clock.

10. By the end of last year he (read) four Shakespeare plays, and by next year he (read) two more. I (not see) him since last Monday, but I (believe) he (write) an essay on Hamlet at present.